Restructuring Charges (Summary of Restructuring Charges) (Details) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) employee	Dec. 31, 2018 USD ($) employee	Dec. 31, 2017 USD ($) employee
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 11.4	$ 1.6	$ 1.6	$ 2.9	$ 1.8	$ 5.2	$ (0.6)	$ 0.8	$ 17.5	$ 7.2	$ 13.0
2019 Repositioning Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges									9.9
2019 Repositioning Actions [Member] | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Restructuring charges									$ 9.9
Restructuring and Related Cost, Expected Number of Positions Eliminated | employee									180
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent									1.00%
2019 Repositioning Actions [Member] | ExpectedRestructuringCostsin2020[Member] [Member] | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	4.8								$ 4.8
2017Repositioning [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges									2.3	5.6
Severance Costs									0.9
Restructuring and Related Cost, Expected Number of Positions Eliminated | employee											300
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent											3.00%
Other Costs related to repositioning actions									11.0	7.5
Other Restructuring Costs									1.4
Payments for Restructuring									(12.8)	(6.5)
2017Repositioning [Member] | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Restructuring charges									0.6	6.1
Other Restructuring Costs									0.0
Payments for Restructuring									(3.2)	(3.8)
2017Repositioning [Member] | Fluid Handling | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges									0.6	6.1
Payments for Restructuring									(3.2)	(3.8)
2017Repositioning [Member] | Fluid Handling | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges									0.0	0.0
Payments for Restructuring									0.0	0.0
2017Repositioning [Member] | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Restructuring charges									2.1	0.5
Payments for Restructuring									(9.9)	(3.3)
2017Repositioning [Member] | Payment & Merchandising Technologies | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges									0.3	0.1
Payments for Restructuring									(8.1)	(2.9)
2017Repositioning [Member] | Payment & Merchandising Technologies | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges									1.8	0.4
Payments for Restructuring									(1.8)	(0.4)
2017Repositioning [Member] | Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Restructuring charges									(0.4)
Restructuring (reversal of cost)									(0.4)	(1.0)
Payments for Restructuring									0.3	0.6
2017Repositioning [Member] | Aerospace & Electronics | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges									0.0	0.0
Severance Costs									0.0
Payments for Restructuring									(0.3)	(0.4)
2017Repositioning [Member] | Aerospace & Electronics | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring (reversal of cost)									(0.4)	(1.0)
Payments for Restructuring									0.6	$ 1.0
Acquisition-Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges									5.3
Restructuring and Related Cost, Expected Number of Positions Eliminated | employee										170
Acquisition-Related Restructuring [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Other Costs related to repositioning actions									0.6
Acquisition-Related Restructuring [Member] | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Restructuring charges									5.3
Severance Costs									1.7
Other Restructuring Costs									3.6
2017 Repositioning Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges									2.3
Restructuring and Related Cost, Expected Cost Remaining	$ 0.9								0.9
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent										2.00%
cumulative [Member] | 2017Repositioning [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges									32.0
Severance Costs									31.2
Other Restructuring Costs									0.8
cumulative [Member] | 2017Repositioning [Member] | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Restructuring charges									17.3
Severance Costs									17.3
Other Restructuring Costs									0.0
cumulative [Member] | 2017Repositioning [Member] | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Restructuring charges									14.8
Severance Costs									12.6
Other Restructuring Costs									2.2
cumulative [Member] | 2017Repositioning [Member] | Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Restructuring charges									(0.1)
Severance Costs									1.3
Other Restructuring Costs									(1.4)
cumulative [Member] | Acquisition-Related Restructuring [Member] | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Restructuring charges									6.9
Severance Costs									3.3
Other Restructuring Costs									$ 3.6